Improved alloy for tubing



composed of tin and zinc i i-combination.

puma area.

fitnitrd fitatrz JOHN S. BARDEN, OF PROVIDENCE, RHODEv ISLAND.

Letters Patent No. 94,935, dated same 21, 1869.

IMPROVED ALLOY I'OR TUBING.

The Schedule referred to these Letters Patent and making part of the same- To all whom it may concern: Be it known that '1, JOHN S. BARDEN, of thecit-y and county of Providence, in the State of Rhode Island, have invented certain new and useful Improvements in Tubingf and I do hereby declare that the following specification is a full, clear, and exact description thereof. j

Tubing which has heretofore been manufactured,

whether from iron, brass, copper, lead, or bronze-metal,

has been subject to many objections: iron, from its liability to rust; brass, copper, and bronze-metal, from their corrosive tendency, whereby anyfiuid passing through them is charged withimpurity; andlead,not

only from its poisonous qualities, but from the diflicnlty and expense of soldering the joints.

I propose to manufacture tubing from-metal of a peculiar character, which shall at once overcome all these objections. j

I make use of a metalfor this purpose which is The pro- I portions which I consider to be the best are two parts zinc and one of tin, with antimony sufi'icient to render the metal of proper hardness. The proportions,

thread, which enables the sect-ions to be joined like iron pipes.

What I claim as; myriuvention, and desire to secure by Letters Patent, is-

Tubing made from metal composed of the elements and possessing the characteristics substantially as described.

' JOHN S. BARDEN.

Witnesses: l a

W, B. VINGENT, JOHN D. W. TAYLOR. 

